Re: [PATCH v2 1/5] block, dax: pass blk_dax_ctl through to drivers

kbuild test robot
2016-03-30T04:21:04Z

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Hi Dan,

[auto build test ERROR on linux-nvdimm/libnvdimm-for-next]
[also build test ERROR on v4.6-rc1 next-20160329]
[cannot apply to xfs/for-next]
[if your patch is applied to the wrong git tree, please drop us a note to help improving the system]

url: https://github.com/0day-ci/linux/commits/Vishal-Verma/dax-handling-of-media-errors/20160330-100409
base: https://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm libnvdimm-for-next
config: s390-default_defconfig (attached as .config)
reproduce:
wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=s390

All error/warnings (new ones prefixed by >>):

drivers/s390/block/dcssblk.c: In function 'dcssblk_direct_access':
>> drivers/s390/block/dcssblk.c:36:13: error: storage class specified for parameter 'dcssblk_segments'
static char dcssblk_segments[DCSSBLK_PARM_LEN] = "\0";
^
>> drivers/s390/block/dcssblk.c:36:1: error: parameter 'dcssblk_segments' is initialized
static char dcssblk_segments[DCSSBLK_PARM_LEN] = "\0";
^
>> drivers/s390/block/dcssblk.c:38:12: error: storage class specified for parameter 'dcssblk_major'
static int dcssblk_major;
^
>> drivers/s390/block/dcssblk.c:39:45: error: storage class specified for parameter 'dcssblk_devops'
static const struct block_device_operations dcssblk_devops = {
^
>> drivers/s390/block/dcssblk.c:39:21: error: parameter 'dcssblk_devops' is initialized
static const struct block_device_operations dcssblk_devops = {
^
>> drivers/s390/block/dcssblk.c:46:1: warning: empty declaration
struct dcssblk_dev_info {
^
drivers/s390/block/dcssblk.c:62:1: warning: empty declaration
struct segment_info {
^
>> drivers/s390/block/dcssblk.c:70:16: error: storage class specified for parameter 'dcssblk_add_store'
static ssize_t dcssblk_add_store(struct device * dev, struct device_attribute *attr, const char * buf,
^
>> drivers/s390/block/dcssblk.c:72:16: error: storage class specified for parameter 'dcssblk_remove_store'
static ssize_t dcssblk_remove_store(struct device * dev, struct device_attribute *attr, const char * buf,
^
In file included from include/linux/genhd.h:63:0,
from include/linux/blkdev.h:9,
from drivers/s390/block/dcssblk.c:16:
>> include/linux/device.h:575:26: error: storage class specified for parameter 'dev_attr_add'
struct device_attribute dev_attr_##_name = __ATTR(_name, _mode, _show, _store)
^
>> drivers/s390/block/dcssblk.c:75:8: note: in expansion of macro 'DEVICE_ATTR'
static DEVICE_ATTR(add, S_IWUSR, NULL, dcssblk_add_store);
^
>> include/linux/device.h:575:9: error: parameter 'dev_attr_add' is initialized
struct device_attribute dev_attr_##_name = __ATTR(_name, _mode, _show, _store)
^
>> drivers/s390/block/dcssblk.c:75:8: note: in expansion of macro 'DEVICE_ATTR'
static DEVICE_ATTR(add, S_IWUSR, NULL, dcssblk_add_store);
^
>> include/linux/device.h:575:26: error: storage class specified for parameter 'dev_attr_remove'
struct device_attribute dev_attr_##_name = __ATTR(_name, _mode, _show, _store)
^
drivers/s390/block/dcssblk.c:76:8: note: in expansion of macro 'DEVICE_ATTR'
static DEVICE_ATTR(remove, S_IWUSR, NULL, dcssblk_remove_store);
^
>> include/linux/device.h:575:9: error: parameter 'dev_attr_remove' is initialized
struct device_attribute dev_attr_##_name = __ATTR(_name, _mode, _show, _store)
^
drivers/s390/block/dcssblk.c:76:8: note: in expansion of macro 'DEVICE_ATTR'
static DEVICE_ATTR(remove, S_IWUSR, NULL, dcssblk_remove_store);
^
>> drivers/s390/block/dcssblk.c:78:23: error: storage class specified for parameter 'dcssblk_root_dev'
static struct device *dcssblk_root_dev;
^
In file included from include/linux/module.h:9:0,
from drivers/s390/block/dcssblk.c:10:
>> drivers/s390/block/dcssblk.c:80:18: error: storage class specified for parameter 'dcssblk_devices'
static LIST_HEAD(dcssblk_devices);
^
include/linux/list.h:23:19: note: in definition of macro 'LIST_HEAD'
struct list_head name = LIST_HEAD_INIT(name)
^
>> include/linux/list.h:23:9: error: parameter 'dcssblk_devices' is initialized
struct list_head name = LIST_HEAD_INIT(name)
^
>> drivers/s390/block/dcssblk.c:80:8: note: in expansion of macro 'LIST_HEAD'
static LIST_HEAD(dcssblk_devices);
^
>> drivers/s390/block/dcssblk.c:81:28: error: storage class specified for parameter 'dcssblk_devices_sem'
static struct rw_semaphore dcssblk_devices_sem;
^
>> drivers/s390/block/dcssblk.c:88:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
{
^
drivers/s390/block/dcssblk.c:109:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
{
^
drivers/s390/block/dcssblk.c:136:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
{
^
drivers/s390/block/dcssblk.c:154:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
{
^
drivers/s390/block/dcssblk.c:172:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
{
^
drivers/s390/block/dcssblk.c:189:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
{
^
drivers/s390/block/dcssblk.c:213:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
{
^
drivers/s390/block/dcssblk.c:279:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
{
^
drivers/s390/block/dcssblk.c:315:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
{
^
drivers/s390/block/dcssblk.c:324:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
{
^
In file included from include/linux/genhd.h:63:0,
from include/linux/blkdev.h:9,
from drivers/s390/block/dcssblk.c:16:

vim +/dcssblk_segments +36 drivers/s390/block/dcssblk.c

^1da177e Linus Torvalds 2005-04-16 23
^1da177e Linus Torvalds 2005-04-16 24 #define DCSSBLK_NAME "dcssblk"
^1da177e Linus Torvalds 2005-04-16 25 #define DCSSBLK_MINORS_PER_DISK 1
^1da177e Linus Torvalds 2005-04-16 26 #define DCSSBLK_PARM_LEN 400
98df67b3 Kay Sievers 2008-12-25 27 #define DCSS_BUS_ID_SIZE 20
^1da177e Linus Torvalds 2005-04-16 28
46d74326 Al Viro 2008-03-02 @29 static int dcssblk_open(struct block_device *bdev, fmode_t mode);
db2a144b Al Viro 2013-05-05 @30 static void dcssblk_release(struct gendisk *disk, fmode_t mode);
dece1635 Jens Axboe 2015-11-05 31 static blk_qc_t dcssblk_make_request(struct request_queue *q,
dece1635 Jens Axboe 2015-11-05 32 struct bio *bio);
e3cb53fb Dan Williams 2016-03-29 @33 static long dcssblk_direct_access(struct block_device *bdev,
e3cb53fb Dan Williams 2016-03-29 34 struct blk_dax_ctl *dax)
^1da177e Linus Torvalds 2005-04-16 35
^1da177e Linus Torvalds 2005-04-16 @36 static char dcssblk_segments[DCSSBLK_PARM_LEN] = "\0";
^1da177e Linus Torvalds 2005-04-16 37
^1da177e Linus Torvalds 2005-04-16 @38 static int dcssblk_major;
83d5cde4 Alexey Dobriyan 2009-09-21 @39 static const struct block_device_operations dcssblk_devops = {
^1da177e Linus Torvalds 2005-04-16 40 .owner = THIS_MODULE,
46d74326 Al Viro 2008-03-02 41 .open = dcssblk_open,
46d74326 Al Viro 2008-03-02 42 .release = dcssblk_release,
420edbcc Carsten Otte 2005-06-23 43 .direct_access = dcssblk_direct_access,
^1da177e Linus Torvalds 2005-04-16 44 };
^1da177e Linus Torvalds 2005-04-16 45
b2300b9e Hongjie Yang 2008-10-10 @46 struct dcssblk_dev_info {
b2300b9e Hongjie Yang 2008-10-10 47 struct list_head lh;
b2300b9e Hongjie Yang 2008-10-10 48 struct device dev;
98df67b3 Kay Sievers 2008-12-25 49 char segment_name[DCSS_BUS_ID_SIZE];
b2300b9e Hongjie Yang 2008-10-10 50 atomic_t use_count;
b2300b9e Hongjie Yang 2008-10-10 51 struct gendisk *gd;
b2300b9e Hongjie Yang 2008-10-10 52 unsigned long start;
b2300b9e Hongjie Yang 2008-10-10 53 unsigned long end;
b2300b9e Hongjie Yang 2008-10-10 54 int segment_type;
b2300b9e Hongjie Yang 2008-10-10 55 unsigned char save_pending;
b2300b9e Hongjie Yang 2008-10-10 56 unsigned char is_shared;
b2300b9e Hongjie Yang 2008-10-10 57 struct request_queue *dcssblk_queue;
b2300b9e Hongjie Yang 2008-10-10 58 int num_of_segments;
b2300b9e Hongjie Yang 2008-10-10 59 struct list_head seg_list;
b2300b9e Hongjie Yang 2008-10-10 60 };
b2300b9e Hongjie Yang 2008-10-10 61
b2300b9e Hongjie Yang 2008-10-10 62 struct segment_info {
b2300b9e Hongjie Yang 2008-10-10 63 struct list_head lh;
98df67b3 Kay Sievers 2008-12-25 64 char segment_name[DCSS_BUS_ID_SIZE];
b2300b9e Hongjie Yang 2008-10-10 65 unsigned long start;
b2300b9e Hongjie Yang 2008-10-10 66 unsigned long end;
b2300b9e Hongjie Yang 2008-10-10 67 int segment_type;
b2300b9e Hongjie Yang 2008-10-10 68 };
b2300b9e Hongjie Yang 2008-10-10 69
e404e274 Yani Ioannou 2005-05-17 @70 static ssize_t dcssblk_add_store(struct device * dev, struct device_attribute *attr, const char * buf,
^1da177e Linus Torvalds 2005-04-16 71 size_t count);
e404e274 Yani Ioannou 2005-05-17 @72 static ssize_t dcssblk_remove_store(struct device * dev, struct device_attribute *attr, const char * buf,
^1da177e Linus Torvalds 2005-04-16 73 size_t count);
^1da177e Linus Torvalds 2005-04-16 74
^1da177e Linus Torvalds 2005-04-16 @75 static DEVICE_ATTR(add, S_IWUSR, NULL, dcssblk_add_store);
^1da177e Linus Torvalds 2005-04-16 @76 static DEVICE_ATTR(remove, S_IWUSR, NULL, dcssblk_remove_store);
^1da177e Linus Torvalds 2005-04-16 77
^1da177e Linus Torvalds 2005-04-16 @78 static struct device *dcssblk_root_dev;
^1da177e Linus Torvalds 2005-04-16 79
c11ca97e Denis Cheng 2008-01-26 @80 static LIST_HEAD(dcssblk_devices);
^1da177e Linus Torvalds 2005-04-16 @81 static struct rw_semaphore dcssblk_devices_sem;
^1da177e Linus Torvalds 2005-04-16 82
^1da177e Linus Torvalds 2005-04-16 83 /*
^1da177e Linus Torvalds 2005-04-16 84 * release function for segment device.
^1da177e Linus Torvalds 2005-04-16 85 */
^1da177e Linus Torvalds 2005-04-16 86 static void
^1da177e Linus Torvalds 2005-04-16 87 dcssblk_release_segment(struct device *dev)
^1da177e Linus Torvalds 2005-04-16 @88 {
b2300b9e Hongjie Yang 2008-10-10 89 struct dcssblk_dev_info *dev_info;
b2300b9e Hongjie Yang 2008-10-10 90 struct segment_info *entry, *temp;
b2300b9e Hongjie Yang 2008-10-10 91

:::::: The code at line 36 was first introduced by commit
:::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2

:::::: TO: Linus Torvalds <torvalds@ppc970.osdl.org>
:::::: CC: Linus Torvalds <torvalds@ppc970.osdl.org>

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